/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package com.l2jfrozen.gameserver.network.serverpackets;

import com.l2jfrozen.gameserver.model.TradeList;
import com.l2jfrozen.gameserver.model.TradeList.TradeItem;
import com.l2jfrozen.gameserver.model.actor.instance.L2ItemInstance;
import com.l2jfrozen.gameserver.model.actor.instance.L2PcInstance;

/**
 * @author Beetle
 */
public class TradeUpdate extends L2GameServerPacket
{
    private static final String _S__74_TRADEUPDATE = "[S] 74 TradeUpdate";
    private final L2ItemInstance[] _items;
    private final TradeItem[] _trade_items;

    public TradeUpdate(final TradeList trade, final L2PcInstance activeChar)
    {
        _items = activeChar.getInventory().getItems();
        _trade_items = trade.getItems();
    }

    private int getItemCount(final int objectId)
    {
        for (final L2ItemInstance item : _items)
            if (item.getObjectId() == objectId)
                return item.getCount();
        return 0;
    }

    @Override
    public String getType()
    {
        return _S__74_TRADEUPDATE;
    }

    @Override
    protected final void writeImpl()
    {
        writeC(0x74);

        writeH(_trade_items.length);
        for (final TradeItem _item : _trade_items)
        {
            int _aveable_count = getItemCount(_item.getObjectId())
                    - _item.getCount();
            boolean _stackable = _item.getItem().isStackable();
            if (_aveable_count == 0)
            {
                _aveable_count = 1;
                _stackable = false;
            }
            writeH(_stackable ? 3 : 2);
            writeH(_item.getItem().getType1()); // item type1
            writeD(_item.getObjectId());
            writeD(_item.getItem().getItemId());
            writeD(_aveable_count);
            writeH(_item.getItem().getType2()); // item type2
            writeH(0x00); // ?
            writeD(_item.getItem().getBodyPart()); // rev 415  slot    0006-lr.ear  0008-neck  0030-lr.finger  0040-head  0080-??  0100-l.hand  0200-gloves  0400-chest  0800-pants  1000-feet  2000-??  4000-r.hand  8000-r.hand
            writeH(_item.getEnchant()); // enchant level
            writeH(0x00); // ?
            writeH(0x00);
        }
    }
}

